Tension device for spooling-machines



F. JARRY.

TENSION DEVICE FOR SPOOLING MACHINES.

APPLICATION FlLED Aue.14. \919.

IEt'Ll- FREDERICK JARRY, OF NEW BEDFORD, MASSACHUSETTS. p I

TENSION DEVICE FOR SPOOLING-MACHINES.

Specification of Letters Patent.

' Application filed August 14, 1919. Serial No. 317,511..

To all whom it may concern.

Be it known that I, FREDERICK JARRY, a citizen of the United States,residing at New. Bedford, in the county of Bristol and State ofMassachusetts, have invented certain new and useful Improvements inTension Devices for Spoolin geMachines, of which the following is aspecification. I

This invent-ion relates to certain new and useful improvements intension devices for spooling machines, and the primary object of theinvention is to provide a rolling or rotatable tensioning means and toalso pro vide means for adjusting the tension of the rolling means asdesired. The invention further aims to provide a simple and effectivestructure involving a. minimum of parts easily accessible and unlikelyto be easily deranged. 7 v

Briefly. the invention. proposes arotatable or turnable roller over oraround which the thread passes and a deviceunder the influence of anadjustable counterweight or the equivalent for placing the axle 01'supporting shaft of the roller under adjustable tension. 1

In the drawings, -illustrating an embodi-, ment of the invention,

Figure 1, is a top plan view;

Fig. 2, is a side elevation; and

Fig. v3, is a section taken online 33 of Fig. 2. v I

In proceeding in accordance with the present invention a rollerl, isrigidly mounted on or in rigid connection with a. supporting shaftoraxle 2 the latter mounted in a journal 3, the journal being here shown,by way of example as carried by a standard extend I ing upwardly from abase 5. The journal is provided with a cut-out 6 which at one endcommunicates with the axle 2 and is radial to the latter. A brake blockor friction shoe 7 is slidably mounted in the cut-out 6 andis guided bythe walls defining the latter. The block at its inner end is grooved at8 to conformably receive the axle and is similarly rooved at 9 at itsouter end to receive a lever rod 10 which latter is pivoted at 11 to avertical arm 12. Arm 12 is offset from its lower part 12vthe latterbeing projected through the journal. The grooves 8 and 9 are disposed ata right angle to each other and likewise the axle and lever rod 10. Acounterweight 13 is adjustable along the lever'lO, so as to vary thetension on the ingaction of the shoe on the axle.

An eye ll is carried by the base and located onone side of the roller 1,while a.

.latter and once around the roller 1 and thence under the hook 15, tothe spool adjacent the hook. the tension being created by the brakingaction or force o'f the shoe 7 which retardsxrotation of the roller axleaccording to the position of the weight.

As is obvious ,fromthe foregoing, a simple and. econon'lical structureis provided in which vthe shoe may be removed and-replaced by simplylifting same subsequent to disengagement of the lever rod therefrom.

What is clain'ied is Y 1. In a tension device for spooling machines, ajournal having acut-out therein, an axle in the journal communicatingwith the cut-out. a braking shoe slidable in the cutout and having agroove on its inner end receiving the axle and a groove on its outer endat right angles to the first named groove,

an arm on the journal, a counterweighted lever pivoted to the arm andengaged in said groove of the outer end of the shoe, a thread engagingroller on the axle, and thread guiding'members on opposite sides of the,roller and located therebelow. j

2. In a tension device for spooli-ng machines, an axle, a yarnengagingroller borne by the axle, a friction shoe engaged at one end with theaxle, means to slidably mount the shoe, a pivoted lever bearing betweenthe ends thereof on the opposite end of the shoe, and a weightadjustable on the lever.

- 3. In a tension device for spooling machines, an axle. a yarn engagingroller borne by the axle, a friction shoe engaged at one end with theaxle. meansto slidably mount the shoe, a pivoted lever bearingbetweenits ends on the opposite end of the shoe, and means to adjustablytension the lever.

at. In a tension device for spooling machines, an axle, a yarn engagingroller on the axle, a friction shoe of bar-like form, means to mountsaid shoe to allow same to slide radially of the axle and to bear. atone end on the latter, and means engaged with the Patented Jan. 27;1920.

'55 shoe 7 and accordingly the tension or brakother end of the shoe toadjustabl'y tension the latter.

5. In a tension device for spooling inaehi-nes, an axle, a yarn engagingroller on the axle, a friction shoe of bar-like form, means to mountsaid shoe to allow same to slide radially of the axle and to hear at oneend on the latter, and a lever pivoted at. one end and counter-weightedat its opposite end. said lever overlying the shoe and bearing thereonat a point intermediate of its ends, whereby the shoe may be slid out ofengagement with the axle by swinging of the lever out of en- 'gagenientWith the shoe.

the cut-out and havingits inner end hearing.

on the axle, and means engaging the-outer end of the bar-like shoe totension the same. In testimony whereof I. affix my signature.

FREDERICK. JA e-Y.

